Improvement in butchers  steels



- W. T. 61101101." Butchers, Ste

No. 198,668. Patenfed Dec. 25,1877.

' which consists in a butchers' steel UNITED STATES PATENT OFFICE;

WILLIAM T. NICHOLSON, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO- THENICHOLSON FILE COMPANY, OF SAME PLACE.

IMPROVEMENT IN BUTCHERS STEELS.

Specification forming part of Letters Patent No. 198,668, dated December25, 1877; application filed December 6, 1877.

' plete description of my invention.

So far as my knowledge extends, no butchers steels have heretofore beenprovided with means for, finishing or polishing the edge of a knife,although various styles of cutting or abrasive surfaces have beendevised for sharpening.

To afford a capacity for polishing an edge after the operation thereonof the cutting-surface of the steel is the object of my invention,provided with the oppositely-located cutting-surfaces, and twooppositely-located smooth or finishing surfaces.

To more particularly describe my invention I will refer to theaccompanying drawings, in which- I a Figure 1 is a side view, and Fig. 2a crosssection, of one of my novel steels.

The surfaces a are roughened in any of the well-known styles, so as tooperate as cuttingsurfaces when stroked with a knife in the usualmanner.The surfaces 12 are smooth, and the steel being hardened, they operatesuccessfully in well finishing an edge which has been attained with thecutting-surfaces. The cutting and the finishing surfaces are eachoppositely located, in order that whichever operation is performed, theknife may bepassed from side to side alternately, in a manner wellknown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- A butchers steel provided with two oppositely-locatedcutting or abrasive surfaces and two oppositely-located smooth,polishing, or finishing surfaces, substantially as described.

WM. T. NICHOLSON.

